service —n. 1 work, or the doing of work, for another or for a community etc. (often in pl.: the services of a lawyer). 2 work done by a machine etc. (has given good service). 3 assistance or benefit given. 4 provision or supplying of a public need, e.g. transport, or (often in pl.) of water, gas, electricity, etc. 5 employment as a servant.

trade —n. 1 a buying and selling. b this between nations etc. c business conducted for profit (esp. as distinct from a profession). d business of a specified nature or time (Christmas trade; tourist trade). 2 skilled craft practised professionally. 3 (usu. prec. by the) people engaged in a specific trade (the trade will never agree). 4 US transaction, esp. a swap.